Edexcel IGCSE Maths (4MA1) · Unit 4: Graphs & Functions
Trigonometric Graphs questions with full solutions for Pearson Edexcel International GCSE Mathematics A (4MA1), Higher tier. Read the 2 worked examples first, then try the 3 exam-style questions yourself and check your working against the mark scheme.
Solve \(\sin x=0.5\) for \(0^\circ\le x\le360^\circ\).
Answer: \(30^\circ,\ 150^\circ\)
Solve \(\tan x=-1.5\) for \(0^\circ\le x\le360^\circ\).
Answer: \(123.7^\circ,\ 303.7^\circ\)
Try each question before you open the answer. The mark schemes use Edexcel-style marks: M for method, A for accuracy (after the method mark), B for an independent result.
Write down the period of the graph of \(y=\tan x\).
Answer: 180°
Solve \(\tan x=2\) for \(0^\circ\le x\le360^\circ\). Give your answers to 1 decimal place.
Answer: \(x=63.4^\circ,\ 243.4^\circ\)
How many solutions does the equation \(\tan x=5\) have for \(-360^\circ\le x\le360^\circ\)? Give a reason.
Answer: 4
Every question and worked example here is original, written for IGCSE Math Revision rather than copied from Pearson papers, and each answer was re-solved independently before publishing.
Either Higher tier paper, 1H or 2H, can test trigonometric graphs: both cover the whole Pearson Edexcel International GCSE Mathematics A (4MA1) specification and both allow a calculator. Show your method, because most marks are for working.
In the IGCSE student hub: Unit 4 (Graphs & Functions) has more exam-style questions on this topic, each with a mark scheme. Practice starts with a 7-day free trial; the worked examples and questions on this page are free.
IGCSE Math Revision